thrieg/ft_malloc
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Thomas Rieg 2025-11-28 19:50:58 +01:00
commit 42653de246
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libft/ft_strtrim.c Executable file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strtrim.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: thrieg <thrieg@student.42mulhouse.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/10/15 12:44:26 by thrieg #+# #+# */
/* Updated: 2025/02/16 19:05:20 by thrieg ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
static size_t ft_str_size(char const *s1, char usedchar[256])
{
size_t size;
size_t index;
size = 0;
index = 0;
while (*s1)
{
while (usedchar[((int)*s1) + 128])
{
s1++;
index++;
}
if (*s1)
{
s1++;
index++;
size = index;
}
}
return (size);
}
//returns NULL if any argument is null or if an allocation fails
char *ft_strtrim(char const *s1, char const *set)
{
char *ret;
char usedchar[256];
int start_index;
size_t size;
if (!set || !s1)
return (NULL);
if (!*set)
return (ft_strdup(s1));
ft_bzero(usedchar, 256);
while (*set)
usedchar[((int)*set++) + 128] = 1;
start_index = 0;
while (usedchar[((int)s1[start_index]) + 128])
start_index++;
if (!s1[start_index])
return (ft_strdup(""));
size = ft_str_size(&s1[start_index], usedchar);
ret = malloc(sizeof(char) * (size + 1));
if (!ret)
return (NULL);
ft_strlcpy(ret, &s1[start_index], (size + 1));
return (ret);
}